When NH4NO3 is dissolved in water the temperature of the water decreases? When NH4NO3 is dissolved in water, the temperature of the water decreases. When NaOH is dissolved in a separate water sample, the temperature of the water increases. Based on these observations, it can be concluded that the dissolving of? NH4NO3 is endothermic and […]
Which materials were used to make the fuselages of the first airplane?
Which materials were used to make the fuselages of the first airplane? During the early days of aviation, primitive fuselages were built with wood. In the late 1920s and early 1930s, airplane manufacturers started producing more fuselages from aluminum and steel. These metals offered more stability and greater protection from the elements. Why is carbon […]
What happens when other scientists get different results when repeating an experiment?
What happens when other scientists get different results when repeating an experiment? Once we have repeated our testing over and over, and think we understand the results, then it is time for replication. That means getting other scientists to perform the same tests, to see whether they get the same results. Those different results give […]
How are video games made the process from start to finish?
How does temperature affect yield strength?
How does temperature affect yield strength? For the majority of materials, the yield strength decreases with increasing temperature. In metals, this decrease in yield strength is due to the thermal activation of dislocation motion, resulting in easier plastic deformation at higher temperatures. Why does tensile strength vary with temperature? High temperatures make the materials soft. […]
What does a GFCI do?
What does a GFCI do? The ground-fault circuit interrupter, or GFCI, is a fast-acting circuit breaker designed to shut off electric power in the event of a ground-fault within as little as 1/40 of a second. It works by comparing the amount of current going to and returning from equipment along the circuit conductors. How […]
What are the machines used in agriculture?
What are the machines used in agriculture? Steam-powered: Stationary steam engine. Portable engine. Traction engine (e.g. Agricultural engine, Ploughing engine, Steam tractor) Hog oiler. Reaper (replaced by the Stripper and Reaper-binder) Winnowing machine/Winnowing-fan. Threshing machine (replaced by the combine harvester) Drag harrow. How are the machines useful for farmers? Modern irrigation relies on machinery. Engines, […]
What is bubble sort with example?
How can skin drag friction be reduced?
How can skin drag friction be reduced? Friction drag can be reduced by delaying the point at which laminar flow becomes turbulent. This can be accomplished by smoothing the exposed surfaces of the aeroplane by using flush rivets on the leading edges and through painting, cleaning, waxing, polishing or the application of surface coatings. What […]
What are the 5 stages of emerging adulthood?
What are the 5 stages of emerging adulthood? The Five Features of Emerging Adulthood the age of identity explorations; the age of instability; the self-focused age; the age of feeling in-between; and. the age of possibilities. What are the 5 stages of adolescence? The five leading characteristics of adolescence are biological growth and development, an […]